Charging or measuring device.



J. A. SVENSON.

CHARGING AND MEASURING DEVICE. APPLICATION FILED FEB-1B. I9II. RENEWEDSEPT. I4. I916.

1,222,162. Patented Apr. 10,1917.

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J. A SVENSON.

CHARGING AND MEASURING DEVICE. APPLICATION FILED FEB- I8, 19H. RENEWEDSEPT. 14 I916.

Patented Apr. 10, 1917.

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JOHN A. SVENSON, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOB. 0F ONE-HALF TOJESSE J. SHUMAN, O1? PITTSBURGH, PENNSYLVANIA.

CHARGING OR MEASURING DEVICE.

Specification of Letters Patent.

Patented Apr. 10, 1217.

Application filed February 18, 1911, Serial No. 609,404. RenewedSeptember 14, 1916. Serial No. 120,190.

To all whom it may concern:

Be it known that T, JOHN A. SvENsoN, a citizen of the United States,residing at Pittsburgh, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inCharging or Measuring Devices, of which the following is aspecification.

This invention relates to a charging or measuring device adapted tofacilitate the introduction of materials into a concrete mixing machine.

The objects of the invention are to provide a charging device which islow down, so that materials may be shoveled into the receptacles of thedevice by arelatively short lift; to prevent material from being throughthe charging device and the mixing machine taken in the plane of line 33of Fig. 2.

While the detailed construction of the mixing machine forms no part ofthe present invention, the embodiment of the invention shown in thedrawings is particularly adapted for use in conjunction with a mixingmachine having a relatively shallow circular mixing chamber orcontainer32 which may be mounted upon any suitable support herein shown ascomprising a low truck 36 37. The materials are mixed by revolvingpaddles 33 of any preferred construction and driven by any suitablemeans.

A charging or measuring device, embodying my invention in its preferredform as shown in the drawings, comprises a triangular framework 20 whichrests upon the horizontal upper edge of the container 32. Plates 21 and22 secured to the oppositely sloping sides of the framework 20constitute a roof which completely closes the upper end of the container32. An opening 4 1 is provided in each of the plates 21 22 and at theinner edges of said openings 21 pair of vertical plates 16 17 issituated, said plates being suitably secured to the frame 20 andextending downwardly from the openings 11 substantially to the plane ofthe upper edge of the container 32. Charging receptacles or boxes 12 and13 are mounted in the openings 4-1, each of the said receptaclescomprising a bottom wall, a front wall and two opposite side walls. Therear side of the receptacle is open, said side being closed by theadjacent plate 16 17 when the receptacle is in its normal position. T hereceptacles are pivotally secured to the frame 20 by means of pivotbolts or rods 18 19 at the upper rear corners of the side walls of thereceptacles. These pivot bolts are thus located adjacent to the openside of the receptacle. Pandles 23 and 2 1 are fixed to the front wallsof the receptacles and provide means for manually swinging the receptacles laterally and upwardly. When so swung, the open side of thereceptacle will move away from the adjacent wall 16 17, and the materialin the receptacle will fall by gravity into the mixing chamber 32. Itwill be noted that the bottom walls of the receptacles when in normalposition are substantially flush with the'upper edge of the mixingchamber. The construction is such that the receptacles are placed at thelowest possible position so that material may be shoveled into thereceptacles by a relatively short lift. The sides of the receptacles fitclosely along the edges of the opening 41, so that when'the receptaclesare in their normal position, material cannot be introduced into themixing chamber except through the charging receptacles. Any materialwhich accidentally falls outside of the receptacles will roll or slidedown the roof plates 21 22 onto the ground.

If desired, the receptacles may be made of different sizes as shown mostclearly in Fig. 2 in order to facilitate measuring the differentingredients of the concrete. In Fig. 2 the receptacles 13 areillustrated as raised into position to discharge the contained materialinto the mixing chamber 32. it will be noted that only a short pivotalmovement of each receptacle is necessary to bring it into suchdischarging position. Preferably, the receptacles are made shallow attheir outer sides and deep adjacent to the plates 16 and 17. Thisfacilitates'the swinging or lifting of the receptacles upwardly, andalso facilitates shoveling material into the receptacles.

By reason of the fact that the pivot bolts 18, 19 are located at adistance above the bottom walls of the receptacles and adjacent to theopen sides thereof the weight of the receptacles and the materialtherein tends to hold the receptacles in their normal position in whichthe open sides are closed by the stationary vertical plates 16, 17. Thereceptacles are therefore perfectly stable, it being impossible toaccidentally tilt them into discharging position in the operation ofshoveling material thereinto.

If desired, partitions 14 and 15, indicated in dotted lines in Fig. .1,may be employed todivide either or both of the receptacles into suitablespaces for containing different materials. These partitions arepreferably removable and may be adjustably secured in the receptacles byany well known or preferred means.

I claim as my invention:

1. The combination of an open top container, a triangular frameworkmounted upon the upper edge thereof, roof plates mounted on saidframework and sloping downwardly in opposite directions, each of saidplates having an opening therein, avertical wall extending downwardlyfrom the inner edge of each of said openings, and charging receptacleseach having an open side arranged to be closed by one of said verticalplates, each receptacle being pivoted at its upper corner adjacent tosaid plate, whereby the receptacle maybeswung upwardly away from saidplate to discharge its contents into said container.

2. The combination with a relatively shallow container having means tosupport it close to the ground, of a framework mounted upon the upperedge of said container, a roof secured to said framework and completelyclosing the upper end of said container, said roof having an openingtherein, and a charging receptacle fitting closely in said opening andpivotally mounted in said framework, the bottom wall of said receptaclewhen in normal position being substantially flush with the upper edge ofsaid container.

3. The combination with a relatively shaled upon the upper cdge of saidcontainer, a roof secured to said framework and covering said container,said roof having it downwardly sloping portion provided with an opening,a charging receptacle fitting in said opening and pivotally mounted insaid framework, the bottom of said receptacle when in normal positionbeing substantially fiushwith the upper edge of said container, and saidreceptacle being shallower at its outer side than at its-inner side, anda handle secured to said receptacle for swinging it to discharge thecontents-into said container.

4. charging or measuring device comprising a frame including a verticalplate and a box having an open top and an open side, said box beingpositioned so that said plate normally closes said open side, and meanspivotally connecting the upper corners of said box to said frame at apoint adj acent to said vertical plate.

5. A charging or measuring device comprising a box having an open topand an open side, said box being pivoted at its upper cor- 11ersadjacent to said open side, a stationary plate closingv said open sidewhen the box is in its normal position, and a handle on said box forswinging said box upwardly away from said plate to discharge itscontents.

6. The combination of an open top container, a frame mounted upon saidcontainer, a roof covering said container and having an opening therein,a receptacle having an open side, said receptacle fitting in the openingin said roof and being pivoted to said frame at its upper cornersadjacent to said open side, and, a stationary vertical plate mounted insaid frame and closing said open side when said receptacle is in itsnormal position.

7. In a charging or measuring device, the combination of a verticalplate and a recepta'cle having a bottom wall normally 'a-butting at oneedge adjacent to said plate, said receptacle being pivoted on an axislocated a distance above said bottom-wall and adjacent to said verticalplate, whereby said receptacle may be swung upwardly to withdraw saidbottom wall edgewise away from said plate. V

In testimony whereof I aflix my signature in the presence of twowitnesses. 7

JOHN A. SVENSON. lVitnesses Anion A. Tia-ILL, G. G. TRILL.

Copies of this patent may be obtained for'five cents eaoh b y addressingthe Commissioner of Patents, Washington, I). 0.

